Gastrointestinal System

Question 1

Gastrointestinal System

Answer 1

Aka digestive or alimentary system. Three main functions:

1) Digest food (via paristalsis)
2) Absorb nutrients (through blood stream via small intestine walls for use throughout body)
3) Transfer waste material for elimination (large intestine)

Question 2

Peristalsis

Answer 2

Involuntary smooth muscle contractions that move the food through the digestive tract

Question 3

Digestive process

Answer 3

1) Mouth = chewing and swallowing
3) Esophagus = takes swallowed food to stomach
4) Stomach = initial digestion, gastric enzymes break down food
5) Small intestine = further digestion and nutrient absorption
6) Large intestine = solid waste formation
7) Rectum = elimination

Question 4

Mouth

Answer 4

Chewing and swallowing

Question 5

Esophagus

Answer 5

Takes swallowed food to stomach

Question 6

Stomach

Answer 6

Initial digestion; gastric enzymes break down food

Question 7

Small intestine

Answer 7

Further digestion; nutrient absorption

Question 8

Large intestine

Answer 8

Solid waste formation

Question 9

Rectum

Answer 9

Waste elimination

Question 10

Teeth

Answer 10

Accessory organ; used to mechanically break down food

Question 11

Salivary glands

Answer 11

Accessory organ; produce saliva to begin process of breakdown and allow for ease of transfer from the esophagus to the stomach

Question 12

Liver

Answer 12

Secretes bile (needed for digestion) as well as metabolizes proteins, fats, and carbohydrates

Question 13

Gallbladder

Answer 13

Stores bile secreted by the liver, which is required for digestion

Question 14

Pancreas

Answer 14

Secretes enzymes necessary for digestion